升级

scripts/export_article_covers.py

@@ -0,0 +1,64 @@
+import hashlib
+import json
+from pathlib import Path
+
+from PIL import Image, ImageOps
+
+
+ROOT = Path(__file__).resolve().parents[1]
+CACHE = ROOT / ".tmp" / "gzhh-images"
+RAW = CACHE / "raw"
+MANIFEST = CACHE / "manifest.json"
+ARTICLES = ROOT / "src" / "data" / "articles.generated.json"
+OUTPUT = ROOT / "public" / "assets" / "article-covers"
+
+manifest = json.loads(MANIFEST.read_text(encoding="utf-8"))
+by_url = {
+    item["url"]: item
+    for item in manifest
+    if item.get("status") == "ok" and item.get("file")
+}
+articles = json.loads(ARTICLES.read_text(encoding="utf-8"))
+OUTPUT.mkdir(parents=True, exist_ok=True)
+
+exported = 0
+missing = []
+used_files = set()
+
+for article in articles:
+    source_url = article.get("coverSourceUrl") or article.get("cover", "")
+    if not source_url.startswith("http"):
+        continue
+    cache_entry = by_url.get(source_url)
+    if not cache_entry:
+        missing.append({"title": article.get("title", ""), "url": source_url})
+        continue
+
+    key = hashlib.sha256(source_url.encode("utf-8")).hexdigest()[:12]
+    output_name = f"cover-{key}.webp"
+    output_path = OUTPUT / output_name
+    with Image.open(RAW / cache_entry["file"]) as image:
+        frame = ImageOps.exif_transpose(image).convert("RGB")
+        frame.thumbnail((960, 960), Image.Resampling.LANCZOS)
+        frame.save(output_path, "WEBP", quality=82, method=6)
+
+    article["coverSourceUrl"] = source_url
+    article["cover"] = f"/assets/article-covers/{output_name}"
+    used_files.add(output_name)
+    exported += 1
+
+ARTICLES.write_text(
+    json.dumps(articles, ensure_ascii=False, indent=2) + "\n",
+    encoding="utf-8",
+)
+
+summary = {
+    "articles": len(articles),
+    "exported": exported,
+    "uniqueFiles": len(used_files),
+    "missing": len(missing),
+    "bytes": sum((OUTPUT / name).stat().st_size for name in used_files),
+}
+print(json.dumps(summary, ensure_ascii=False))
+if missing:
+    raise RuntimeError(f"Missing {len(missing)} cached cover images")